Mitsubishi Electric Mr.SLIM PLA-SM71EA Service Manual page 46

OPERATING PROCEDURE
13. Removing the float switch (FS)
(1) Remove the drain pan. (Refer to procedure 10)
(2) Loosen the clamp of the drain pump. (See Photo 14)
(3) Remove the float switch (tapping screw 4×10: 1 screw/1
hook). (See Photo 14)
(4) Remove the float switch base and the lead wire fixing band.
(See Photo 15)
(5) Remove the lead wire from the U shaped portion of the
float switch base. (See Photo 15)
(6) Slide the float switch towards the arrow to remove from the
float switch base.
14. Removing the heat exchanger
(1) Remove the drain pan. (Refer to procedure 10)
(2) Remove the piping cover (tapping screw 4×10: 3
screws).
(3) Remove the coil plate (tapping screw 4×10: 2
screws).
(4) Remove the heat exchanger fixing screws (tapping
screw 4×10: 2 screws).
(5) Remove the coil support (tapping screw 4×10: 1
screw each)
■ RP35–60:
1 coil support (See photo 16)
■ RP71–140:
3 coil supports (See photo 17)
(6) Remove the heat exchanger.
Photo 17
Heat exchanger fixing screws
Piping cover
Coil plate
OCH683
Coil supports
Coil support
fixing screws
Heat exchanger
Do not hold this floating part
Photo 15
when lifting; Doing so will cause
malfunction.
Photo 16
Heat exchanger fixing screws
Piping cover Coil plate
46
PHOTOS
Float switch
Float switch base
Float switch base
and lead wire fixing
band
U shaped portion of the
float switch base
Coil support fixing screw
Coil support
Heat exchanger